VoL.26 No.1 解仑等：交流励磁工频同步电机传动系统仿真及研制 。109· Numerical Simulation and Manufacture of a Grid Frequency Synchronized Ma- chine Drive Control System XIE Lun,LU Yifang",WANG Zhiliang",XUE Weimin,SUN Yikang 1)Information Engineering School,University of Science and Technology Beijing,Beijing 100083,China 2)Automation School,Beijing United University,Beijing 100083,China ABSTRACT The key structure of an Ac excited grid frequency synchronized machine(AEGFSM)was presen- ted.The simulation of AEGFSM,cyclo-converter,field-oriented vector control algorithm was done according to the- ir discrete mathematical model.An AEGFSM sample drived was fabricated.Simulation results are in excellent agreement with the experimental under the typical working condition.It is concluded that AEGFSM drives have the high-quality dynamic performances as DC drives and provide an applicable solution of middle-voltage freqency- variable drives. KEY WORDS AEGFSM;cyclo-converter;field-oriented vector control algorithm;middle-voltage frequency- variable drive 个个个u个个个个0个u个0U个个u个g个u个0、个u个0个5个9个·06个个个个个个个u个个u个个6个个个个9个 (上接第52页) Large-Scale 3D Model and Quantitative Characterization of Grain Microstrcture Based on Monte Carlo Potts Simulation OIN Xiangge 2,LIU Guoquan 1)Materials Science and Engineering School,University of Science and Technology Beijing,Beijing 100083,China 2)College of Material Engineering,Jiamusi University,Jiamusi 154007,China ABSTRACT In order to improve the statistics of 3D grain microstructure models,a large-scale 3D digital model of microstructures of polycrystalline materials was implemented using Monte Carlo Potts simulation.The quantitat- ive characterization and 3D visualizing of the model were carried out.The results show that the grain size distribu- tion and the grain face number distribution in this model can be fitted approximately by the lognormal function,with an average grain face number of 13.8+0.1,very similar to the polycrystalline microstructure in real material. KEY WORDS polycrystalline microstructure model;monte carlo simulation;grain size distribution;grain top- ologyVb l . 2 6 N O . l 解 仑 等 : 交 流励 磁 工频 同 步 电机 传动 系统 仿 真及 研制 . 109 . N u m e r i e a l S im u lat i o n an d M an u fac t 切限 o f a G ri d F re q u e n c y S yn c hr o n i z e d M a - e h i n e D r i v e C o ltf o l S y s t e m 刀百 L u n , ), L U J af7 雌 , ), 恻刃 G hZ i lia gn , , , 尤U E 肠im i n , ), S U N K k a 馆 , , l ) I n of n n at ion Egn ine e inr g S e h o o l , U n ive rs ity o f s e i e cn e an d eT e lm o l o gy B e ij l n g , B e ij i n g l 0 00 8 3 , C h in a 2 ) A ut om at i o n S ch o o l , B e ij ign nU ite d nU ive r s ity, B e ij ign l 0 0 0 83 , C h i n a A B S T R A C T hT e k ey s t u c ltU e o f an A e e x e it e d igr d fer q u e n e y s yn e hr o血 e d m a e h in e (A EGF S M ) w as P r e s e -n t e d . T h e s而 u l at i o n o f A E G F S M , e y e l o 一 e von ert e r, if e ld 一 o ir e in e d v e e ot r e o n tr o l al g ior t h m w a s d o en ac e o r dign t o het - ir d i s e ert e m at h e m at i e a l m o de l . A n A E G F S M s 田皿 Pl e dir v e d w as afb ir e at e d . S im u lat i o n er s u lt s ar e i n e x e e ll e nt a gr e e m ent w i ht ht e e xP ier m ent a l nU d er het yt Pi e a l w o r k i n g e o dn iit on . ft 1 5 e o n c l u d e d ht at A E G F S M idr v e s h a v e ht e h i g卜q u a liyt 勿 n am i e Pe iof mr an e e s a s D C idr v e s an d Por v ide an a PPli e ab l e s o lut ion o f m i d d l e 一 v o it ag e fr e q e cn y - v iar ab l e d ir v e s . K E Y WO R D S A E G F SM ; e y e l o 一 e o vn ert e r ; if e l小o ir e ent d v e ct o r e o n tr o l al g o ir t加rn ; m i d d l e 一 v o it ag e fer q u e n cy - v iar ab l e d ir v e (上接 第 52 页 ) L a r g e 一 S e a l e 3 D M o d e l an d Q u a n t lt at i v e C h ar a e t e r i z at i o n o f rG a i n M i e r o s tr e utr e B a s e d o n M o in e C盯 1 0 P o t s S im u l at i o n g脚 爪 口 n g g e l , , ), IL U 翻 。 叮u a n , , l ) M a t e ir al s S e i cen e an d E昭in e e r in g S e ho o l , U n i v e rs ity o f s e ien e e an d eT e iln o l o gy B e ij in g , B e ij in g l 0 0 0 8 3 , C h ina 2 ) C o ll e 罗 o f M 咖ir a l E n g in e e inr g , Ji am u s i U n i v e rs ity , Ji am us i 15 4 0 0 7 , C h in a A B S T R A C T nI o r d er ot im P r o v e ht e s at iist e s o f 3 D gr a l n m i e or s trU e tL ir e m o d e l s , a l a gr e 一 s e a l e 3 D d i g ialt m o de l o f m i e r o s t u c trU e s o f P o ly e yr s t a ll ien m at e ir a l s w a s im P l e m e in e d us i n g M o in e C ar l o P o t s s un lat ion . hT e q u an t lat - i v e e h ar a ct e ir z at ion an d 3 D v i s u a li z i n g o f ht e m o d e l w er e a r r i e d o ut . hT e er su it s s h ow ht at ht e gr a l n s 沈e d i s itr b-u it o n an d ht e gr a ln fac e umn b e r di s itr b ut i o n i n 而 5 m o d e l e an b e if t e d a PPor x 加at e l y 勿 ht e l o gn o mr al fu n e it o n , w i ht an va e r a g e gr ian fac e n 切 m b e r o f 13 . 8士 0 . 1 , v e yr s加il ar t o ht e P o ly e yr st a llin e m i e r o s t ur c tL rI e in er a l m at e ir a l . K E Y W O R D S P o ly e yr st a lli n e m i e or s tr u c h 让e m o de l: m o nt e e ar l o s im u l at i o n : 『a ln s i z e d i s tr l but ion ; gr a in t OP - o l o g y